PET RECYCLING | TECHNOLOGY
polymers and biodegradable materials, potentially opening new revenue streams for recycled PET. While the research is still primarily in the
experimental stage, it has shown promising scalability. NIES is collaborating with industrial partners to pilot the process in a semi-commercial setting. Discussions are taking place with local manufacturers to implement pilot programs that will assess the feasibility of integrating this dual- method recycling into existing systems, the researchers said.
Polycondensation France-based engineering and technology com- pany Technip Energies has been advancing sustainability through its specialised Zimmer Polymer Technologies branch which focuses on refining the production and recycling processes for polyesters, including PET. By leveraging decades of experience, Technip Energies has been developing innovative solutions aimed at enhancing the circularity of PET and improving recycling efficiency, according to Hans Meier, Senior Vice President of Polymer Process Technologies at Technip Energies. Zimmer Polymer Technologies employs an
advanced polycondensation system for use in both the primary production and recycling of PET. Its polycondensation step is a process in which monomers terephthalic acid and ethylene glycol are chemically bonded to create polymer chains under controlled conditions. For recycling, Zimmer’s technology facilitates the breakdown and reintegra- tion of recycled PET into the manufacturing cycle while maintaining high material quality, said Meier. The system’s flexibility and modular design enable integration with various recycling methods, including chemical depolymerisation and enzyme- assisted processes, ensuring seamless adaptation to different recycling setups. Technip says the Zimmer technology offers advantages over traditional mechanical recycling methods. Mechanical recycling typically grinds PET into flakes, which are then washed and re-melted. However, this approach can lead to weakened polymer chains and reduced performance in new products. In contrast, Zimmer’s polycondensation technology ensures that recycled PET retains its molecular integrity, producing high-quality rPET that can be used in demanding applications such as food and beverage containers. Additionally, the
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